A) immunity B) differentiation C) heredity D) evolution
A) availability of starch molecules B) environment of the organism C) type and order of amino acids D) nutritional habits of the organism
A) gene insertion B) selective breeding C) differentiation D) cloning
A) folded chains of bonded glucose molecules B) coiled strands of genetic material C) large molecules that have only one function D) reproductive cells composed of molecular bases
A) natural selection B) genetic engineering C) habitat modification D) asexual reproduction
A) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four differentmolecular bases. B) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not C) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria D) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
A) some of the DNA in some of the cells will be removed by chemical reactions B) different groups of cells containing the DNA may be exposed to different environmental conditions, for example, more food for one but not the other C) DNA is functional in only 10% of the cells of the body D) only the DNA in certain cells will replicate
A) meiosis → fertilization → mitosis B) mitosis → fertilization → meiosis C) fertilization → meiosis → mitosis D) fertilization → mitosis → meiosis
A) recombination B) mitotic cell division C) zygote formation D) meiotic cell division
A) sorting and recombining of genes in meiosis B) overproduction of offspring and competition C) replication and cloning D) the need to adapt and maintain homeostasis
A) increased the genetic variability of the panther population in Florida B) solved the reproductive problems of the species by asexual methods C) produced more reproductive cells than the male panthers in Texas D) mated only with panthers from Texas
A) a mutation that will affect the synthesis of a certain protein in the cell but not the offspring B) an adaptation that will be passed on to other types of cells in the body C) increased variation in the type of organelles present in the cell D) rapid evolution of the organism in which the cell is found
A) meiosis to produce gametes B) internal fertilization to produce an embryo C) fusion of eggs and sperm to produce zygotes D) mitosis to produce a larger population
A) oranges with seeds, only B) oranges and other kinds of fruit C) a majority of oranges with seeds and only a few oranges without seeds D) oranges without seeds, only
A) It is not affected by conditions outside the embryo. B) It will not be affected by any medication taken by the mother C) It is affected primarily by the eating habits and general health of the father. D) It is affected primarily by the eating habits and general health of the mother.
A) Replicated chromosomes separate during gamete formation. B) Offspring have a combination of genes from both parents. C) The cells produced by a zygote usually have different genes. D) As an embryo develops, various tissues and organs are produced.
A) a dog named Samantha and how she helps her owner overcome obstacles B) a virus aimed to cure cancer that mutates and causes humans to become monster-like C) a cancer that mutates and becomes elegant and beautiful D) the strange effects mannequins can have on people
A) cannot be passed on to offspring B) are usually beneficial to the organism C) lead to more serious mutations in offspring D) usually lead to the death of the organism
A) Each cell has half the normal number of chromosomes and the cells are usually genetically different. B) Each cell has half the normal number of chromosomes and the cells are usually genetically identical. C) Each cell has pairs of chromosomes and the cells are usually genetically identical. D) Each cell has pairs of chromosomes and the cells are usually genetically different.
A) have a resistance to different antibiotics B) synthesize the same proteins and enzymes as the entire colony is cloned from the original C) replicate different numbers of genes D) express adaptations unlike (different than) those of the other cells
A) affect the production of eggs B) make carrying a fetus impossible C) make fertilization impossible D) decrease her ability to provide essential nutrients to an embryo
A) placenta B) ovary C) progesterone D) estrogen
A) provide plenty of testosterone for her well-being B) carry progesterone and fool the mother's body into thinking it is already pregnant C) are easily digestable D) are made up of nutrient-rich sugars
A) producing toxins that compete with bacterial toxins B) inserting part of their DNA into the bacterial cells C) causing mutations in the bacteria D) engulfing (devouring) and digesting the bacteria whole
A) it takes a very long time to begin injecting its viral RNA code into the hosts' cells B) provides immediate immunity to other diseases C) automatically causes AIDS D) hijacks cells into making more viruses leaving the host defenseless to disease |